Photo: Courtesy hitchBOT Instagram.This is why we can't have nice things. HitchBOT, an adorable robot hitchhiking his way across the globe, found his trip cut short this weekend. After successfully trekking through Canada and Germany, the bot was fatally vandalized after only two weeks in the U.S. of A. HitchBOT was a social robotic experiment. With no means of transportation, hitchBOT relied on human kindness to get from Point A to Point B; it participated in social media postings to share...